Ophthalmic mounting.



'0. H. DAY.

OPHTHALMIC MOUNTING.

APPLZCATION FILED Jun/27. I916.

Patented Oct. 2,1917.

ononsn 3. DAY, or soo'rnianlzoen, MAssAoHUsm-r ns srelvon T0 AMERICAN- QP'IIGALCOMPANY, OF SOU-I'HBRIDGE, MASSACHUSETTS, A VOLUNTARY ASSO- CIATION 0F MA$$AUHUSETTS.

OPHTHALMIC moon'rrnc.

:tSouthbridge, in the county of Worcester and {State of hilassachusetts, have invented ceri-ain new and useful lmprm'ements in Ophthalmic Mountings, of which the following is a specification.

' This invention relates toimprovements in I reference to a novel construction of combined r'netallic and nou-n'letallic materials.v

One of the leading objects of the present invention is the provision. of novel and im proved means for readily connecting a mounting composed of metallic and nonmetallic' members to present a neat and attract-ire appearance and facilitate assembling or separationof vthe parts as desired.

A-further object of the invention is the 1 provision of an improved construction of this nature constructed to particularly faeilitate theirrsertion or removal of the lenses without the necessity of undue stretching or distortion of the non-metallic portion of the frame.

further object of the invention is the .i combination of the metallic and non-metallie parts in such manner that the non-meta cation. taken in connection with the accom-' partying drawings forming a part thereof, and it will be understood that I may make any modifications in the specific details of construction shown and described within the scope of the appended claims without departing from or exceedingthe spirit of the invention.

Figure I represents a front view of one form of monntin constructed in accordance with and em odying the=generic principles of my invention. 7

Fig. Hrepresents a sectional View taken as on the line. 2-2 of Fig. I.

ophthalmic mountings and has particular he portion of-the frames shall have a me-" I Specification of Letters Patent. Patented Oct. 1917.

application filed July 27, 1916. Serial No. 111,591.

Fig. III represents a rear view of the composition or non-metallic portion of the frame, and

Fig. IV represents an edge View of said member; v

In the drawings, the numeral 1 designates the usual'eyeglass bridge which may be formed ofsuitable material and has socured to each end thereof the eye wire or rim 2, split at its outer portion and bearing the end'piece sections?) serving to unite the rim in the usual manner and form points of attachment for the temples 4 designed to retain the mounting in position on the face.

v Iuclosed within said rim is my improi-sd composition or non-metallic lens frame member comprising a. wide ring having the rounded portion 5 and the reduced prefer-' ably V-shaped portion 6 of vless exterior (:liameter'tlian the diameter of the portion 5. 'The purpose of'this should be readily apparent by reference to the drawings from which it will be seen that the shape of the portioufi is such as to just fit within the I inner grooved face 7 of the rim 2 while the diameter of the outer portlon 5 is such that it projects outwardly beyond the outer i face of the rim 2 and consequently conceals this rim when the mounting is viewed from the front.

The composition member as an entirety is formed with the inner grooyefi adapted to receive a, bevel edged lens 9, while to facilitate insertion of the lens within this frame, and to provide of its secure gripping and retention in position 'When inserted, I have formed in the portion 6 the slot or slots 10 extending just through the portion 6 butnot through the portion .5.

The advantages of this construction should be at once apparent by reference to-th'e drawings from which it will be'understood that on account of the formation/of these slots theportion 2 may be readily opened up as by extending at the portion 5 or slight springing of the portion 2 itself to facilitate the ready insertion of the lens in the groove 8 while after the lens has been inserted the parts will automatically spring back into position to retain the lens, While as the frame 2 is placed in position and the end pieces 3 tightened together in the usual manner as by a suitable securing screw, the tightening of the rim or band 2-will tend to draw together the ilt portion 6 cmbraced thereby to tight y'- clamp and lock this portion in enga ement with the lens, the tightening of the and thus serving both to lock the lens in position Within the nonmetallic member and to secure the non-metallic member in p sition within the rim.

While I have shown my improved c'onstruction as mounted within an encircling frame or the like, it will be understood that the composition member described may be employed Without a frame as with a rimless mounting, or with other suitable construction and will, in this form, prove equally efiicient and satisfactory in retaining a. lens in position.

, I claim:

1. A non-metallic lens securing frame for an ophthalmic mounting comprising an interiorly grooved annulus having a, continufparts together nnd secure 2.

ous ring at one side and a split ring at the opposite side thereof, whereby the split porhination with a lens retaining device havmg a continuous annular portion at one side thereof and a slotted portion at the opposite side thereof, said annulus having a central lens receiving groove, of a rim member embracing the slotted portion to clamp the lens in position therein.

In testimony whereof efiix my signature in the presence of two witnesses. 

